package com.itoware;

public class Calculator {
    public static Integer add(Integer a, Integer b){
        return a+b;
    }
    public static Integer sub(Integer a, Integer b){
        return a-b;
    }
    public static Integer multi(Integer a, Integer b){
        return a*b;
    }
    public static Integer div(Integer a, Integer b){
        return a/b;
    }

    public static Double div(double a, double b){
        return a/b;
    }
}
